diff options
Diffstat (limited to 'gcc/varasm.c')
| -rw-r--r-- | gcc/varasm.c | 53 |
1 files changed, 39 insertions, 14 deletions
diff --git a/gcc/varasm.c b/gcc/varasm.c index 47e652e..3165b92 100644 --- a/gcc/varasm.c +++ b/gcc/varasm.c @@ -1586,19 +1586,28 @@ assemble_variable (decl, top_level, at_end, dont_output_data) /* Handle uninitialized definitions. */ - if ((DECL_INITIAL (decl) == 0 || DECL_INITIAL (decl) == error_mark_node -#if defined ASM_EMIT_BSS - || (flag_zero_initialized_in_bss - && initializer_zerop (DECL_INITIAL (decl))) -#endif - ) - /* If the target can't output uninitialized but not common global data - in .bss, then we have to use .data. */ -#if ! defined ASM_EMIT_BSS - && DECL_COMMON (decl) + /* If the decl has been given an explicit section name, then it + isn't common, and shouldn't be handled as such. */ + if (DECL_SECTION_NAME (decl) || dont_output_data) + ; + /* We don't implement common thread-local data at present. */ + else if (DECL_THREAD_LOCAL (decl)) + { + if (DECL_COMMON (decl)) + sorry ("thread-local COMMON data not implemented"); + } +#ifndef ASM_EMIT_BSS + /* If the target can't output uninitialized but not common global data + in .bss, then we have to use .data. */ + /* ??? We should handle .bss via select_section mechanisms rather than + via special target hooks. That would eliminate this special case. */ + else if (!DECL_COMMON (decl)) + ; #endif - && DECL_SECTION_NAME (decl) == NULL_TREE - && ! dont_output_data) + else if (DECL_INITIAL (decl) == 0 + || DECL_INITIAL (decl) == error_mark_node + || (flag_zero_initialized_in_bss + && initializer_zerop (DECL_INITIAL (decl)))) { unsigned HOST_WIDE_INT size = tree_low_cst (DECL_SIZE_UNIT (decl), 1); unsigned HOST_WIDE_INT rounded = size; @@ -5101,9 +5110,14 @@ default_section_type_flags (decl, name, reloc) || strncmp (name, ".gnu.linkonce.b.", 16) == 0 || strcmp (name, ".sbss") == 0 || strncmp (name, ".sbss.", 6) == 0 - || strncmp (name, ".gnu.linkonce.sb.", 17) == 0) + || strncmp (name, ".gnu.linkonce.sb.", 17) == 0 + || strcmp (name, ".tbss") == 0) flags |= SECTION_BSS; + if (strcmp (name, ".tdata") == 0 + || strcmp (name, ".tbss") == 0) + flags |= SECTION_TLS; + return flags; } @@ -5146,6 +5160,8 @@ default_elf_asm_named_section (name, flags) *f++ = 'M'; if (flags & SECTION_STRINGS) *f++ = 'S'; + if (flags & SECTION_TLS) + *f++ = 'T'; *f = '\0'; if (flags & SECTION_BSS) @@ -5353,8 +5369,17 @@ categorize_decl_for_section (decl, reloc) else ret = SECCAT_RODATA; + /* There are no read-only thread-local sections. */ + if (TREE_CODE (decl) == VAR_DECL && DECL_THREAD_LOCAL (decl)) + { + if (ret == SECCAT_BSS) + ret = SECCAT_TBSS; + else + ret = SECCAT_TDATA; + } + /* If the target uses small data sections, select it. */ - if ((*targetm.in_small_data_p) (decl)) + else if ((*targetm.in_small_data_p) (decl)) { if (ret == SECCAT_BSS) ret = SECCAT_SBSS; |